# and
# age = -1
# if age >0 and age < 100:
#     print("输入正确")
# else:
#     print("输入错误")

# or
# python_scroce = 80
# c_score = 30
#
# if python_scroce >= 60 or c_score >= 30:
#     print("合格")
# else:
#     print("不合格")

# not 构成条件
age = 1
if not (age < 18) :
    print("已成年")
else:
    print("未成年")

emoloyer = False
if not emoloyer:
    print("本公司员工")
else:
    print("非本公司员工")